3v4l.org

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<?php $arr = array(1,2,3,4,5); //$g = $arr; foreach($arr as $key => $row) { echo key($arr), '=>', current($arr), "\r\n"; }
Output for 4.3.0 - 4.3.11, 4.4.0, 4.4.2 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.3, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
0=>1 0=>1 0=>1 0=>1 0=>1
Output for 5.2.4 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28
1=>2 1=>2 1=>2 1=>2 1=>2
Output for 4.4.1
1=>2 2=>3 3=>4 4=>5 =>

preferences:
285.74 ms | 401 KiB | 381 Q